We now see a shot of another old, haunted house as a bunch of bats fly by and music playing in the background. And just as the lyrics start, we see Scooby against a black background as he gulps at something we can't see.

Scooby-Dooby-Doo, Where are You?
We've got some work to do now

We now see Fred, Velma, Daphne, Shaggy, and Scooby all walk past a bookshelf and once they walk past it, it slides out of the way revealing a hidden room and a ghost looks out, watching the group carefully.

Scooby-Dooby-Doo, Where are You?
We need some help from you now

We then see Daphne walking away from a door as a hand comes out and tries to grab her. Then we see Fred sitting at a table when the wall opens up behind him and he falls backwards. Then we see Shaggy and Scooby jump back as Scooby's ears stick straight up and Shaggy's hair spikes out a little.

Come on Scooby-Doo, I see you
Pretending you got a sliver

We then see Fred, Velma, Daphne, Shaggy, and Scooby in a graveyard and a ghost coming towards them slowly. Then, we see them running through a hallway and into a room but when they come out, there was seemingly a timejump as they were all teens and Scooby was a fully grown Great Dane.

But you're not fooling me, cause I can see
The way you shake and shiver

Then we see a skeleton in a spacesuit, seemingly in an airfield as it laughs menichally, then we see Shaggy in a hallway holding Scooby as the two vigorously shake out of fear, then we see Scooby and Shaggy uncontrollably skating down a hallway before crashing into a room and a bunch of trash cans in that room.

You know we got a mystery to solve so Scooby-Doo be ready for your act
Don't hold back!

We then see Scooby laughing at something, then Fred sitting on a beach, drawing an air heart but then blowing a kiss to The Mystery Machine. Then we see Velma gasping, then a white skull on some books and then Daphne turning her head to the left and then a blue skull with glowing orange eyes. We then see Scooby holding Shaggy as the two shake out of fear.

And Scooby-Doo if you come through, you're gonna have yourself a Scooby Snack

Then, we see a ghostly deep sea diver and then we see Scooby and Shaggy running along a boardwalk in a barrel until they hit something and fall to the ground.

Scooby and Shaggy poke their heads out of the barrel with the lid on their heads.

That's a fact!

The two then look up at what they hit which was a creepy robot with a frozen face and glowing eyes.

Scooby-Dooby-Doo, Here are You
You're ready and you're willin'

We then see Shaggy jump back after seeing something and his hair spiking up followed by Scooby putting a finger to his mouth and going "Shh."

Then we see a living suit of armor followed by Shaggy and Scooby jumping out of a pot and running off.

If we can count on you, Scooby-Doo
I know you'll catch that villain

We then see Mystery Inc. at a table in a library, looking at a book as Fred, Daphne, Shaggy, and Scooby are looking over Velma's shoulders. They all then look up with a look of realization

We then see Scooby laughing before winking at the audience and going out of view as we then see The Mystery Machine with a bunch of tech on top of it parked outside of R&S Coffee Shop and Diner.